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2023-01-27 - 14:42

ARM TI AM3354 @800 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of system in rack #4, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack4slot2.osadl.org (updated Fri Jan 27, 2023 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73503060,0irq/45-4a10000012-21ksoftirqd/007:04:260
7450930,0irq/46-4a10000013538-21sendmail-msp09:37:490
26461999361,0cyclictest0-21swapper12:28:490
26461999251,0cyclictest0-21swapper10:40:040
7450910,0irq/46-4a10000032645-21df_inode07:23:180
7450910,0irq/46-4a10000024023-21aten_r4power_cu11:43:030
7450910,0irq/46-4a10000022823-21/usr/sbin/munin11:38:340
7350910,0irq/45-4a10000012486-21fw_conntrack11:08:330
26461999169,0cyclictest0-21swapper07:38:220
26461999158,0cyclictest0-21swapper10:58:320
1739329111,0sleep017396-21df11:23:160
7450900,0irq/46-4a1000009579-21/usr/sbin/munin12:34:500
7450900,0irq/46-4a1000006123-21grep09:14:020
7450900,0irq/46-4a1000005708-21fw_conntrack12:23:270
7450900,0irq/46-4a1000003498-21aten_r4power_cu10:43:090
7450900,0irq/46-4a10000019987-21runrttasks09:55:050
26461999057,0cyclictest0-21swapper08:03:340
26461999055,0cyclictest0-21swapper11:28:340
7450890,0irq/46-4a1000005646-21fw_forwarded_lo10:48:320
7450890,0irq/46-4a100000433-21snmpd08:11:340
7450890,0irq/46-4a10000030792-21wget08:53:110
7450890,0irq/46-4a10000030466-21latency_hist07:17:540
7450890,0irq/46-4a10000029820-21ntpq08:49:440
7450890,0irq/46-4a10000021072-21/usr/sbin/munin08:23:430
7450890,0irq/46-4a10000018808-21wget08:18:130
7450890,0irq/46-4a1000001849-21cpuspeed09:03:140
7450890,0irq/46-4a10000014492-21/usr/sbin/munin09:38:510
7350890,0irq/45-4a10000031473-21irqstats12:04:180
26461998959,0cyclictest0-21swapper07:53:550
26461998958,0cyclictest0-21swapper10:23:450
26461998957,0cyclictest0-21swapper10:33:100
26461998954,0cyclictest0-21swapper11:03:400
1225428910,0sleep012293-21tune2fs07:58:240
7450880,0irq/46-4a1000009815-21runrttasks07:51:260
7450880,0irq/46-4a1000003596-21/usr/sbin/munin09:08:160
7450880,0irq/46-4a10000028542-21grep07:13:060
7450880,0irq/46-4a10000027482-21wget11:53:090
7450880,0irq/46-4a10000023911-21cut08:33:110
7450880,0irq/46-4a10000022614-21fw_forwarded_lo08:28:300
7450880,0irq/46-4a10000020903-21tune2fs09:58:270
7450880,0irq/46-4a10000013707-21/usr/sbin/munin11:14:020
7450880,0irq/46-4a1000001227-21seq12:09:210
7450880,0irq/46-4a10000010766-21irqstats09:28:340
7350880,0irq/45-4a10000026059-21df_inode11:48:320
26461998857,0cyclictest0-21swapper11:58:450
26461998857,0cyclictest0-21swapper10:08:440
26461998854,0cyclictest0-21swapper08:58:550
7450870,0irq/46-4a1000008640-21hostname09:23:090
7450870,0irq/46-4a100000433-21snmpd07:36:200
7450870,0irq/46-4a10000028711-1kworker/u3:012:13:360
7450870,0irq/46-4a10000018692-1kworker/u3:008:43:210
7450870,0irq/46-4a10000018026-21grep09:48:560
7450870,0irq/46-4a10000015976-21ls09:43:370
26461998756,0cyclictest0-21swapper07:43:310
7450860,0irq/46-4a1000007413-21/usr/sbin/munin10:53:370
7450860,0irq/46-4a1000007019-21cstates09:18:120
7450860,0irq/46-4a10000027790-1kworker/u3:007:11:180
7450860,0irq/46-4a10000022446-21sshd10:03:170
7450860,0irq/46-4a10000020877-21df_abs11:33:190
7450860,0irq/46-4a10000017603-21latency08:13:370
26461998665,0cyclictest0-21swapper08:38:490
26461998654,0cyclictest0-21swapper12:18:580
26461998653,0cyclictest0-21swapper07:28:530
7450850,0irq/46-4a10000031610-21/usr/sbin/munin10:28:510
7450850,0irq/46-4a10000028099-21sh10:18:530
7450850,0irq/46-4a10000025757-21wget10:13:110
7450850,0irq/46-4a10000016142-21ntpdc11:18:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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